An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Roux E, Helg C, Dumont-Girard F, Chapuis B, Jeannet M, Roosnek E.Roux E, et al. Among authors: chapuis b.Blood. 1996 May 1;87(9):3984-92.Blood. 1996.PMID: 8611731Free article.